They are helping to re-establish electrical power to pumps and motors and to install power panels; draining contaminated water; and acquiring desalination equipment, underwater pumps and air purifiers to filter radioactive dust.
As the divers study the underwater pumps, city officials are investigating where, how and whether to build a bypass tunnel, and are building a filtration system to allow more water to be pumped from the Croton system.
Oil installations in water thousands of feet deep often resemble jellyfish, with a single platform or vessel floating at the top and far below a mass of wellheads, underwater controls, pump stations, piping and processing units snaking along the seabed.
Wet harvesting may look poetic, with large booms corralling floating crimson islands, but it can bruise the berries, which are thwacked from the vines with paddles spinning underwater, then pumped into trucks.
JOHN CORNYN, an air pump DAVID GREGORY, an air pump BOB MENENDEZ, an air pump PETE SESSIONS, an air pump CHRIS VAN HOLLEN, an air pump UNDERWATER ROBOT FROM THE DEEPWATER HORIZON OIL SPILL ARMED WITH A DIAMOND SAW AND LASER EYES: future conqueror of mankind standing in as the Raissoneur, for today.
Syringes can be cleaned with hot tap water: with the tip of the syringe underwater, work the pump until it glides freely.
Obviously the problem is of basic interest in many ocean engineering applications: from the design of certain underwater acoustic transducers to pump and compressor elements passing through the design of naval vehicles and ocean structures.
In actual fact, electrical power has been used in submersible pumps and for underwater arc welding since around the beginning of the last century.
"But they didn't realize that the pump would be underwater during the monsoon," Mr. Kharshiing said.
Many fish dislike turbulent bubbles, so bubble-curtains are increasingly being implemented by pumping air into underwater pipes pierced with tiny holes.
Another time, on a flooding bulk carrier staggering across the North Sea, he had to grope blindly underwater to deactivate a haywire pump.
